matrix := [ [5,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0], [0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0], [0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0], [1,2,6,3,4,4,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0], [0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0], [6,1,0,0,2,5,6,1,2,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0], [6,2,4,4,6,6,5,6,5,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0], [1,2,3,2,4,5,6,2,4,6,5,6,3,0,0,0,0,0,0,0,0,0,0,0,0,0], [6,3,5,2,5,4,5,3,2,6,1,3,2,3,3,0,0,0,0,0,0,0,0,0,0,0], [3,0,1,5,3,0,1,0,1,4,0,2,0,1,1,0,0,0,0,0,0,0,0,0,0,0], [1,1,3,5,2,3,3,5,1,0,2,1,1,4,3,4,5,5,0,0,0,0,0,0,0,0], [1,2,6,0,3,2,6,4,2,5,0,2,0,2,6,1,1,0,5,1,0,0,0,0,0,0], [4,2,2,5,2,6,6,1,4,3,6,1,3,2,5,3,6,1,4,5,0,0,0,0,0,0], [2,6,1,5,3,3,4,1,4,0,0,4,2,0,5,1,5,6,0,5,6,1,5,0,0,0], [1,6,1,3,2,5,6,3,2,1,6,2,3,3,4,4,0,1,4,0,1,6,2,0,0,0], [5,6,5,4,2,5,5,4,0,5,1,6,0,0,3,6,5,0,1,0,2,1,1,0,6,2], [4,5,4,1,5,2,6,3,5,0,1,5,5,2,5,6,4,4,4,5,0,1,6,0,2,3], [5,2,4,3,1,3,4,1,0,2,5,2,4,3,6,6,0,1,5,1,0,5,2,0,3,1], [0,2,6,6,6,3,3,4,3,3,3,6,4,1,5,4,1,5,4,0,4,5,6,0,4,6], [0,1,3,2,0,4,5,5,2,3,2,4,0,2,1,3,2,2,4,4,2,5,4,0,0,0], [0,4,5,4,4,5,6,2,4,2,6,3,2,1,1,5,4,1,6,2,1,3,3,0,4,6], [0,0,4,2,3,5,6,0,0,6,4,6,5,2,3,3,6,4,4,6,4,6,0,0,2,3], [0,6,5,5,4,5,5,5,2,6,2,3,0,2,2,5,2,2,6,3,3,5,0,0,2,3], [0,1,2,0,5,0,6,6,5,3,0,4,5,3,3,5,2,0,4,6,4,1,3,2,3,1], [0,2,0,2,1,5,6,1,5,4,2,4,0,2,6,4,0,0,0,0,0,2,5,0,6,6], [0,5,0,3,1,5,4,4,2,2,0,1,5,2,0,5,3,4,2,6,0,0,0,0,0,2] ]*Z(7);